Family Felidae

LYNX RUFUS (SCHREBER, 1777)

REFERRED MATERIAL Velvet Room: UCMP 140509 L P3 (G5-6, L 1). Mark's Sink: DMNH 33909 R C (8/96); 37163 L C unerupted (L 26, 7/97). Will's Hole: DMNH 40215 R c. Badger Room: DMNH 13924 L C; 41033 R m1; CM 49133 R C; 49138 L c. Generator Dome: DMNH 27044 L c (L 2). Crystal Room: DMNH 36667 R c; CM 49158 R C; 49159 middle phalanx. Cramped Quarters: CM 49154 fragmentary R jaw with canine, p3-4. Undifferentiated: CM 49125 L P4.

DESCRIPTION AND COMMENTS Felids are rare in Porcupine Cave. Except for CM 49154 from Cramped Quarters, the bobcat Lynx rufus is represented by isolated teeth, mainly canines. Measurements of the material fall within a recent sample from Colorado. The stratigraphic range of Lynx rufus extends back to the late Blancan (Cita Canyon, Texas), and the species has been identified from several Irvingtonian sites, including Inglis 1A, Coleman 2A, and Leisey Shell Pit, Florida; Conard Fissure, Arkansas; Trout Cave, West Virginia; and Port Kennedy Cave, Pennsylvania. Werdelin (1985) referred Blancan and Irvingtonian bobcats to an extinct subspecies, L. r. calcaratus. Bobcats are common in the foothills and canyons of the western three-fifths of Colorado (Armstrong, 1972), and individuals have been seen in the vicinity of the cave.

MIRACINONYX CF. M. INEXPECTATUS (COPE, 1895)

REFERRED MATERIAL Badger Room: DMNH 11016 R m1. Undifferentiated: CM 49167 L P4.

DESCRIPTION AND COMMENTS These two teeth represent the only record of Miracinonyx from Porcupine Cave. Irvingtonian cheetahs have been identified from Port Kennedy Cave, Pennsylvania (type locality); Cumberland Cave and Cavetown, Maryland; Hamilton Cave, West Virginia; Inglis 1A, Florida; Conard Fissure, Arkansas; and Santa Clara County, California (Van Valkenburgh et al., 1990). The genus Miracinonyx includes two species of large, small-headed, slender-limbed cats, the Irvingtonian M. inexpectatus and the late Rancholabrean M. trumani.

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